Mrs Dengate said organic food provides a system which prohibits the culprits, with research showing the removal of additives resulted in 60 per cent of a class of six-year-olds showing better behaviour, co-operation and sleeping patterns.

“What is not commonly realised is that there are 50 additives that have been associated with children's behavioural problems which are not permitted under the Biological Farmers of Australia (BFA) organic standard,” she said.

“If organic standards were adopted as mandatory tomorrow, all the current problems we're experiencing from additives would theoretically disappear.”